Shetland: Series 4 Trailer | He served 23 years in jail for murder… a crime he swears he didn't commit. Now, he's back. | By BBC OneFacebook
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Shetland season 4: location: Where is Shetland filmed? Where is it set? | TV & Radio | Showbiz & TV | Express.co.uk
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Shetland season 4 release date: When does the new series start tonight? How many episodes? | TV & Radio | Showbiz & TV | Express.co.uk
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